deno.land / std@0.166.0 / node / _tools / test / parallel / test-stream-readable-no-unneeded-readable.js

test-stream-readable-no-unneeded-readable.js
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// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 18.12.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
'use strict';const common = require('../common');const { Readable, PassThrough } = require('stream');
function test(r) { const wrapper = new Readable({ read: () => { let data = r.read();
if (data) { wrapper.push(data); return; }
r.once('readable', function() { data = r.read(); if (data) { wrapper.push(data); } // else: the end event should fire }); }, });
r.once('end', function() { wrapper.push(null); });
wrapper.resume(); wrapper.once('end', common.mustCall());}
{ const source = new Readable({ read: () => {} }); source.push('foo'); source.push('bar'); source.push(null);
const pt = source.pipe(new PassThrough()); test(pt);}
{ // This is the underlying cause of the above test case. const pushChunks = ['foo', 'bar']; const r = new Readable({ read: () => { const chunk = pushChunks.shift(); if (chunk) { // synchronous call r.push(chunk); } else { // asynchronous call process.nextTick(() => r.push(null)); } }, });
test(r);}
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Tagged at
a year ago